APC by Schneider Electric SMTL3000RM2UC 3kVA Line-Interactive 2U Rack UPS
Overview
The APC by Schneider Electric SMTL3000RM2UC is a 3kVA / 2700W line-interactive uninterruptible power supply built for 2U rack installations requiring clean, regulated 120V power. Designed around a pure sine wave output topology, the SMTL3000RM2UC fits data closets, network equipment rooms, surveillance server racks, and small-to-mid-scale IT environments where generator compatibility and sensitive load protection aren't optional — they're baseline requirements. At 96% efficiency under typical load, it runs cool and keeps operating costs in check across multi-year deployments.
Key Features
- Line-Interactive Topology with Pure Sine Wave Output: Line-interactive designs correct minor voltage sags and swells without switching to battery, extending battery life considerably compared to standby (offline) units. The pure sine wave output — as opposed to the stepped approximation found on less expensive UPS models — is essential for active power factor corrected (APFC) power supplies found in modern servers, NVRs, and network switches. Running those loads on a simulated sine wave risks instability or premature PSU failure.
- 3kVA / 2700W Capacity: 2700W of real output power gives you meaningful headroom. A rack loaded with a mid-range NVR, PoE switch, and two servers typically draws 800–1,400W; at 50–52% utilization you're in the UPS efficiency sweet spot and well below the thermal and battery stress zone. Don't load above 80% (2,160W) for sustained runtime — size to your actual load, not your theoretical max.
- Wide Input Voltage Window — 82V to 144V: The SMTL3000RM2UC accepts input from 82V to 144V before switching to battery. That's a ±30% tolerance on nominal 120V, which handles brownouts and voltage sags common in facilities with shared electrical infrastructure — older buildings, industrial sites, or locations fed from overloaded distribution panels — without draining battery reserves unnecessarily.
- 96% Efficiency: At 96% efficiency, heat dissipation and power overhead stay low. In a 24/7 rack environment, a 4% vs. 8% loss difference compounds into meaningful utility savings over a three-to-five year deployment. It also reduces heat load in dense equipment rooms where cooling headroom is limited.
- Pure Sine Wave with ≤5% Output THD: Output Total Harmonic Distortion held below 5% ensures power quality matches or exceeds utility-grade supply. Audio-visual systems, medical-adjacent diagnostics gear, and precision measurement equipment with tight input tolerances benefit directly — but even standard rack servers run more reliably on clean power over time.
- 459J Surge Energy Rating: The integrated surge suppressor absorbs up to 459 joules of transient energy — adequate for typical lightning-induced surges traveling through the AC mains. For sites in high-lightning-exposure regions or with poor grounding infrastructure, a dedicated whole-panel surge suppressor upstream is still advisable.
- 8 AC Outlets — NEMA 5-15R and NEMA 5-20R: Eight rear-panel outlets cover a mixed rack: standard NEMA 5-15R receptacles handle typical IEC-C14 device power cords (via adapter) and 15A gear, while the NEMA 5-20R receptacles accommodate higher-draw 20A devices without an adapter swap. The outlet mix reduces the need for downstream PDUs in moderate-density racks.
- 55 dB Operating Noise: At 55 dB measured noise, the SMTL3000RM2UC is audible in a quiet office environment — comparable to a conversational tone at close range. In a dedicated rack room or data closet this is a non-issue; in an open-plan office or reception area, plan accordingly or install in an enclosed equipment rack.
- USB Communication Port: The onboard USB port enables direct connection to a host server or management workstation for graceful OS shutdown during extended outages, UPS status monitoring, and event logging. Most major operating systems recognize the UPS as a USB HID device without additional drivers.
- Output Voltage Regulation ±5%: Output stays within ±5% of nominal 120V under load — tighter than utility supply in many commercial buildings. Sensitive networking and storage equipment that specifies a narrow input tolerance benefits from this regulated output whether or not a power event is in progress.
- 50/60 Hz Input and Output Compatibility: Accepts 50 or 60 Hz input, making the unit compatible across North American grid standards and suitable for facilities that may transition between grid frequencies or use generator sets that drift from nominal frequency during startup.
Integration and Compatibility
The SMTL3000RM2UC occupies 2U of rack space in a standard 19-inch rack, making it a natural fit alongside rack-mount UPS and power conditioning equipment in security and IT infrastructure builds. The USB communication interface integrates with Windows, Linux, and macOS shutdown agents, as well as network management platforms that support USB HID UPS devices. For environments requiring SNMP-based remote monitoring, verify whether your specific configuration includes or supports a network management card slot — remote power management across distributed racks benefits from that capability.
The NEMA L5-30 input connection on this unit requires a matching receptacle or appropriate whip at the panel — confirm your rack PDU or wall outlet matches the input connector before ordering. The power protection and conditioning category includes compatible PDUs, transfer switches, and cable accessories if your installation requires input or output distribution beyond the eight onboard outlets.
For surveillance-specific deployments, pair this UPS upstream of your network video recorders and PoE switches to protect continuous recording during outages. A PoE switch feeding IP cameras draws roughly 150–400W depending on camera count and wattage class — budget this into your total load calculation when sizing runtime against the SMTL3000RM2UC's battery capacity.
Frequently Asked Questions
Q: What is the output power capacity of the SMTL3000RM2UC?
A: The SMTL3000RM2UC is rated at 3kVA / 2700W. For reliable operation and good battery runtime, keep actual connected load below 80% of capacity (approximately 2,160W).
Q: Does the SMTL3000RM2UC produce a pure sine wave output?
A: Yes. The SMTL3000RM2UC delivers a pure sine wave output with output THD held at or below 5%, making it compatible with APFC power supplies in servers, NVRs, and network infrastructure.
Q: What input voltage range does the SMTL3000RM2UC support before switching to battery?
A: The unit accepts input voltage from 82V to 144V without switching to battery power. This wide range handles brownouts and voltage sags common in commercial and industrial facilities.
Q: How many outlets does the SMTL3000RM2UC provide, and what types?
A: Eight AC outlets total: a mix of NEMA 5-15R (standard 15A) and NEMA 5-20R (20A) receptacles, providing flexibility for mixed-load rack configurations without requiring additional PDUs for most moderate-density installations.
Q: What is the efficiency rating of the SMTL3000RM2UC?
A: The SMTL3000RM2UC operates at 96% efficiency, minimizing heat output and reducing power overhead in 24/7 rack environments.
Q: Does the SMTL3000RM2UC fit in a standard 19-inch rack?
A: Yes. The SMTL3000RM2UC is a 2U rack-mount unit designed for standard 19-inch equipment racks, occupying only two rack units of vertical space.
The SMTL3000RM2UC hits a practical sweet spot for mid-density rack protection: 2700W of real output power with a 96% efficiency rating keeps operational overhead low in 24/7 installations, and the pure sine wave topology means you're not rolling the dice with APFC power supplies in modern NVRs and servers the way you would with a cheaper stepped-approximation unit. I spec this one when a customer's rack load lands between 800W and 1,600W and they need room to grow without swapping the UPS.
Technical Highlights:
- 82V–144V Input Window: Accepts input voltage all the way down to 82V before switching to battery — a ±30% tolerance that absorbs brownouts and sags without needlessly cycling battery reserves. Facilities with aging electrical infrastructure or shared distribution panels benefit the most from this range.
- Pure Sine Wave, ≤5% THD: Output harmonic distortion capped at 5% satisfies the power quality requirements of APFC server PSUs, managed PoE switches, and precision networking gear. Running those loads on a simulated sine wave is a known path to premature PSU failures and unexplained reboots.
- 459J Surge Rating: The integrated suppressor absorbs 459 joules of transient energy inline — enough for typical utility-borne surge events. For sites with genuine lightning exposure or poor grounding, add a whole-panel suppressor upstream; the onboard rating is a complement, not a substitute, in high-risk environments.
Deployment Considerations:
- The NEMA L5-30 input receptacle requires a matching outlet or hardwired whip at the panel — this is the most common installation surprise. Verify the input connection before the unit ships to avoid a same-day delay at commissioning.
- At 55 dB operating noise, this unit is audible in quiet spaces. It's a non-issue in a locked equipment room or data closet, but plan the install location carefully if the rack is in an open-plan office or reception area.
The SMTL3000RM2UC is well-matched to surveillance infrastructure builds — specifically a rack running a 16- to 32-channel NVR, a managed PoE switch feeding 8–16 cameras, and a firewall or gateway appliance. That load profile typically sits between 900W and 1,400W, keeping the UPS comfortably under 55% utilization for maximum runtime and battery longevity.
